AP BIOLOGY

Detailed explanation-1: -They do not possess vascular tissues (xylem and phloem) that function in the conduction of food, water, and minerals. Due to the lack of vascular tissues, water and nutrients cannot be transported to long distances so they can not grow tall.

Detailed explanation-2: -Mosses are essentially non-vascular, which means they lack any internal vascular tissues to transport water and nutrients, or at least those tissues are poorly developed. This is why mosses are so small! They don’t have the rigid internal structures that would allow them to grow taller like vascular plants.

Detailed explanation-3: -Mosses have some water-conducting cells, but they do not have the empty, lignin-reinforced cells that allow vascular plants to transport water with strong pressure gradients. Thus, mosses have very limited water transport ability and can’t grow very tall.

Detailed explanation-4: -Mosses and liverworts are small, primitive, non-vascular plants. They lack the conductive tissue most plants use to transport water and nutrients. Instead, moisture is absorbed directly into cells by osmosis.

Detailed explanation-5: -The height of mosses is limited by the fact that they are non-vascular plants and therefore cannot transport water and nutrients throughout their structures. Most plants are vascular, which means they have specialized tissues made of vessels that serve as an internal transport system for water and nutrients.